Title:
Endoscopic resection of odontoid process inArnold Chiari malformation Type II
Authors:
P. V. Tomazic , H. Stammberger , M. Mokry , C. Gerstenberger and W. Habermann
Institutions:
1Department of General Otorhinolaryngology, H&N Surgery, Medical University Graz, Graz-Austria; 2D epartment of Neurosurgery, Medical University Graz, Graz-Austria
Keywords:
Arnold Chiari Malformation Type II; basilar invagination; endoscopic resection; odontoid process
Pages:
209 - 213
Abstract:
Introduction: Arnold Chiari Malformation Type II can be associated with basilar invagination through an elongated retroflexed odontoid process (dens axis). Traditionally, decompression surgery has been performed transoral- ly under microscopic vision or via transcutaneous latero-cervical/posterior approaches. Endoscopic approaches were introduced a few years ago. Case report: We report of an eleven-year-old girl with Arnold Chiari Malformation Type II who had undergone surgery eight years ago for posterior cranial fossa decompression at the department of neurosurgery. At that time, an external transcutaneous median approach was performed to resect the posterior arch of the atlas. The patient now presented with the initial symptoms of brainstem compression as a result of an elongated retroflexed odontoid process and cranio- cervical instability. Surgical technique: An endoscopic transoral/transnasal approach was chosen for the resection of the dens. Conclusion: Endoscopic surgery was successful and the complete resection of the dens was achieved without any complications. In a second intervention, orthopaedic surgeons performed cranio-cervical arthrodesis.
Issue:
Vol. 7, 2011, 3rd trimester


Download:
Endoscopic resection of odontoid process inArnold Chiari malformation Type II